In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

Sentence: The name `` SD-6 '' derives from the French , `` Section Disparu '' , which , in character Sydney Bristow 's words , means `` The Section that does n't exist . '' 
 Question: what   derives  from something?
The name `` SD-6 '' ### SD-6

Sentence: Having finished his apprenticeship with Hammond , Keats registered as a medical student at Guy 's Hospital and began studying there in October 1815 . 
 Question: what did someone finish?
his apprenticeship

Sentence: While always referring to oneself or the audience by name would be considered strange in English , in Vietnamese it is considered friendly , and is the preferred way to converse among close friends . 
 Question: why does someone converse  among someone?

is the preferred way

